Object destructuring
Object Destructuring =>
//
The destructuring assignment syntax is a JavaScript expression that makes it
possible to unpack values from arrays,
or properties from objects, into distinct variables.
//
example:
const user = {
id: 42,
is_verified: true
};
const {id, is_verified} = user;
console.log(id); // 42
console.log(is_verified); // truejavascript destructing
/*
* On the left-hand side, you decide which values to unpack from the right-hand
* side source variable.
*
* This was introduced in ES6
*/
const x = [1, 2, 3, 4, 5]
const [a, b] = x
console.log(a) // prints out: 1
console.log(b) // prints out: 2javascript destructuring
const classDetails = {
strength: 78,
benches: 39,
blackBoard:1
}
const {strength:classStrength, benches:classBenches,blackBoard:classBlackBoard} = classDetails;
console.log(classStrength); // Outputs 78
console.log(classBenches); // Outputs 39
console.log(classBlackBoard); // Outputs 1object destructuring
const user = {
name: "Jenny",
age: "12",
hobbies: ["Sport", "Programmieren", "essen"],
};
const { age } = user;
console.log(age);Destructuring in javascript
const { name, age, job } = { name: 'abrar', age: 24, job: 'web-developer' }
console.log(name, age, job)Copyright © 2021 Codeinu
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